Paspalum praecox

Walter
Common names: Early paspalum
Endemic
Synonyms: Paspalum praecox var. curtisianum Paspalum lentiferum
Treatment appears in FNA Volume 25. Treatment on page 597.

Plants perennial; shortly rhizomatous. Culms 5-160 cm, erect, not rooting at the lower nodes; nodes glabrous. Sheaths densely pubescent, occasionally glabrous; ligules 1-2.2 mm; blades to 55 cm long, 2.2-8.3 mm wide, conduplicate (occasionally flat), glabrous below, pubescent above. Panicles terminal, with 2-10 racemosely arranged branches; branches 0.8-10.3 cm, divergent to spreading, often arcuate, terminating in a spikelet; branch axes 0.8-2 mm wide, narrowly winged, glabrous, margins scabrous. Spikelets 2.1-3.1 mm long, 2-2.8 mm wide, paired, imbricate, appressed to divergent from the branch axes, orbicular to suborbicular, stramineous. Lower glumes absent; upper glumes and lower lemmas glabrous, 3-veined, margins entire; upper florets white to light yellow. Caryopses 1.9-2.1 mm, brown. 2n = 20, 40.

Distribution

Va., Miss., Tex., La., Ala., N.C., S.C., Ark., Ill., Ga., Fla.

Discussion

Paspalum praecox grows in pitcher plant bogs, wet pine flatwoods, wet savannahs, prairies, and wet streamhead ecotones. It is restricted to the United States, growing predominantly on the southeastern coastal plain.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Paspalum praecox"
rounded +
anatomy +  and kranz +
Charles M. Allen +  and David W. Hall +
Walter +
1 (?) +  and 3 (?) +
keeled +  and rounded +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
disarticulating +  and pseudopetiolate +
non-radiate +  and radiate +
0 cm0 mm <br />0 m <br /> (55 cm550 mm <br />0.55 m <br />) +
pubescent +  and glabrous +
usually linear +  and lanceolate occasionally ovate +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.83 cm8.3 mm <br />0.0083 m <br />) +
divergent +  and arranged +
0.8mm +  and 2mm +
spikelike +
0.8 cm8 mm <br />0.008 m <br /> (10.3 cm103 mm <br />0.103 m <br />) +
not developed +
ringlike +
orbicular +  and elliptical planoconvex or flattened +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
sometimes longer +
Early paspalum +
not rooting +
5 cm50 mm <br />0.05 m <br /> (160 cm1,600 mm <br />1.6 m <br />) +
Va. +, Miss. +, Tex. +, La. +, Ala. +, N.C. +, S.C. +, Ark. +, Ill. +, Ga. +  and Fla. +
capillary +
germination +
pistillate +  and staminate +
sometimes longer +
compressed +  and terete +
shorter or longer +
subtending +
unequal +
membranous +
uncinate +
bracteate +  and ebracteate +
solid +  and hollow +
cauline +  and basal +
coriaceous +
0.1 cm1 mm <br />0.001 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
membranous +
inconspicuous +
complex +  and simple +
concealed +  and prominent +
2 +  and 1 +
subterranean +
spreading +  and erect +
dry +  and fleshy +
glabrous +  and pubescent +
subsessile +  and shortly pedicellate +
divergent +, imbricate +  and paired +
0.21 cm2.1 mm <br />0.0021 m <br /> (0.31 cm3.1 mm <br />0.0031 m <br />) +
1 +  and 60 +
unisexual +  and bisexual +
orbicular +  and suborbicular +
2mm +  and 2.8mm +
1 +  and 3 +
fused +  and free +
2 +  and 3 +
dome--shaped +  and triangular +
Paspalum praecox var. curtisianum +  and Paspalum lentiferum +
Paspalum praecox +
Paspalum +
species +
membranous +
stipitate +  and sessile +
rounded +  and acute +
stramineous +  and dark-brown +
smooth +  and slightly rugose +
smooth +  and slightly rugose +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +